Commitment to Responsible Manufacturing

Trina Solar is committed to providing cleaner energy solutions. As we work to improve the technology and quality of our products we make every effort to protect the health and safety of our employees and the local environment.

Sustainable Manufacturing

We carefully monitor our annual manufacturing emissions and the carbon footprint of our product. As we reduce our manufacturing resource usage, annual audits by the British Standards Institute (BSI) help us to reliably track and report our progress. In the last three years, we have reduced both our electricity and water consumption by over 60% each.

Third party institutes have recognized this commitment to our workers, community and environment. Trina Solar has been ranked No. 1 globally for environmental and social performance in the Silicon Valley Toxics Coalition's (SVTC) 2013 Solar Scorecard. The Solar Scorecard evaluates factors such as extended producer responsibility and takeback, supply chain monitoring, green jobs, chemical-use and product life cycle analysis and disclosure. We are also a member of PV Cycle, to ensure that our products are recycled at the end of their lifetime.

The British Standards Institution (BSI) verified Trina's low carbon footprint of 781.8kg for the entire module manufacturing process from raw material acquisition to packaging as environmentally friendly according to PAS 2050 and ISO 14067 standards

Electricity Reduction

Recovering and reusing residual heat from our silicon plant with cooling waterSelective use of refrigeration units and air-cooled heat pumpsCollecting and reusing reverse osmosis concentrated waterReducing compressed dry air (CDA) system regeneration time

Electricity Consumption per MW Module Production（MWH/MW）

Water Reduction

Building a waste water treatment plant to treat and recycle campus waterCareful measurement of water useMaximizing the use of recycled water and used water

Water Consumption per MW Module Production (m3/MW)

GHG Emissions

Trina Solar has conducted ISO14064 Greenhouse Gas Emission Data verification for three consecutive years and put substantial efforts in establishing a systematic methodology to quantify and report GHG emissions.
In 2012, the company emitted 413,000 tons of carbon dioxide. The carbon emission per MW module produced dropped to 239.4 tone/MW in 2012 from 242.2 tone/MW in 2011. In 2012, we implemented various energy saving projects, which contributed to reducing more than 4,000 tons of carbon emission.

Trina Solar GHG Emissions （Tone-CO2e/MW）

Air Emissions

Trina Solar has built a range of scrubbers, such as acidic/caustic scrubbers and organic scrubbers to remove pollutants from air emissions.

Implementing the projects of collection and reuse of RO (reverse osmosis) rejected water, HVAC condensate water, and even the preliminary treated waste water;The water is used for washing, heating, cooling, cleaning, and gardening etc. Working together with Wuxi Depple Water Investment to build a new water recycling plant. The plant uses advanced dual-membrane (ultra- ltration and reverse osmosis) technology to treat industrial waste water created during the manufacturing process. The treated water was sent back to Trina Solar as supplementary raw water supply.

Empowering our Communities

Solar photovoltaics present an affordable, reliable and clean way to generate needed electricity for communities off of the energy grid and supplement existing, more expensive electricity generation for those on the grid. As the industry continues to make great progress in improving product eﬃciencies and bringing down the cost of solar energy, its ability and responsibility to affect positive change in the world grows. Trina Solar is working hard to lead the industry in empowering individuals and their communities.

Trina Solar does not use prison labor during any aspect of the product life cycle, including end-of-life recycling and disposal.

Chemical Use, Emissions and Environmental Impact

We are committed to delivering a cleaner, smarter energy. Our accredited third party partners, such as the British Standards Institute, help us to measure and confirm our performance on key metrics of sustainable manufacturing. These reports help us to set the right goals, track our progress, and stay accountable to our employees, communities and customers.

Summary of Emissions at Each Stage of Production

Polysilicon

Wafer

Cell

Module

Greenhouse gases/C02 Emissions

Perfluorocarbons, SF6/NF3, CHF3, CF4, C2F6

Air emissions: SOx, NOx, VOCs, PM10

Domestic waste landfill disposal by weight

Hazardous waste released and transferred

Total heavy metal emissions

Other chemical waste (HCl, HF, Cl2)

Note: Trina Solar does not dispose our hazardous waste directly into landfills; we incinerate hazardous waste and then dispose of ashes in landfills. We are proud that our monitoring reports consistently find our heavy metal emissions to be below detection limits.